BD88415GUL
Coupling Capacitorless Headphone Amplifiers
BD88415GUL
Coupling Capacitorless Headphone Amplifiers
BD88□□□GUL為無輸出耦合電容的耳機放大器。本產品內建調節式電荷泵型的負電壓產生電路，從電源電壓直接生成調節後的負電壓。使用電源電壓和該負電壓兩種電壓驅動耳機放大器，可以接地準位爲基準進行輸出。因此，即使無大容量的輸出耦合電容，也可直接連接耳機。因而可減少成本・電路板面積・以及元件的高度。另外，低音域的訊號不會因為輸出耦荷電容和輸出負載電阻造成衰減，因此可呈現完整的低音。依據基準電壓類型、設定增益，備有豐富的産品陣容。
Product Detail
規格:
Iq[mA]
2
Ext. Gain
No
Gain [dB]
3.5
Output Type
C-less
Number of Ch
2
Gain [dB]
3.5
Maximum Output [mW,RL=16Ω]
80+80
Maximum Output [mW,RL=32Ω]
60+60
Minimum Load [Ω]
16
Input Type
Analog
THD+N [%,RL=16Ω]
0.006
S/N [dB]
101
Start Up Time [µs]
80
Stand-by Current [µA]
0.1
Power Supply Voltage (Min.) [V]
2.4
Power Supply Voltage (Max.) [V]
5.5
Headphone PSRR[dB]
-80
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
2.1x2.1 (t=0.55)
功能:
・單一電源工作:2.4V to 5.5V・無需大容量輸出耦合電容
・低失真特性
・低消耗電流
・內建負電源電路
・短路保護/過熱保護
參考設計 / 應用評估套件
-
- Evaluation Board - BD88415GUL-EVK-001
BD88200GUL/BD88400GUL is output capacitor-less headphone amplifiers. The voltage gain can be change by the external resisters. BD88200GUL has a Ground-Referenced terminal. BD88400GUL doesn’t have a Ground-Reference terminal. BD88200GUL can be used as BD88210GUL/BD88215GUL/BD88220GUL by changing external resisters. BD88400GUL can be used as BD88410GUL/BD8415GUL/BD88420GUL by changing external resisters.
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